How much power would the NX need to perfectly emulate WiiU games?

[Thunderbird77]

First, NX needs to be a home console. X1 emulates the x360 with 6x the power. It seems like Wii U's  successor will have at least 4 teraflops, wich is already around 8x the wii u's power. I don't think emulation will be a problem.